while scaling my MAF, I had my cable disconnect and this corrupted the flash process

I am trying to restore it now, and already found all the schematics to build an lpt based cable and hardwire it to the boardhowever I am having no luck whatsoever finding software that would let me load the ROM, is there nothing available at all?

I know it's easy to get a "used ECU of ebay", but good luck finding a JDM 2005 Type RA ECU of homologated GrN car

so if that doesn't work, I might get some wrx ecu and swap the hc16 chips with my locked one